Stream-list does not pass on info/metadata

Nobody has claimed this yet.

Stream-list.js does not seem to preserve info/metadata like stream-scanline does. Scanline calls getInfo on the source to get the source's parameters and then pushes them onto the stream, preserving metadata. But Stream-list does not handle info at all (except for a require('Info') at the start which is then not used again), so outputs produced using streamlist have no metadata.

Is this intentional or an omission? I can see that copying all of the metadata from an original (including bounds info) when you use stream-list to only grab a portion of the tiles wouldn't be quite correct, but in my use case I'm copying a selection of vector tiles from a tmsource/mapnik XML and need to have the vector_layers json in the resulting mbtiles file in order for it to be useable.

Compare Stream-list.js with stream-scanline, especially the getInfo call and the unused require('Info'). Check how metadata is written to the resulting MBTiles output, using vector_layers JSON as the concrete case. Done means stream-list preserves the metadata needed by copied vector tiles without blindly retaining invalid bounds information.

Written by the indexing model from the issue text.